Exempel på serratus

• If the lesion occurs more distally involving the upper trunk, the dorsal scapular and long thoracic nerves are spared, preserving rhomboid and serratus anterior muscle function.

• It primarily works the anterior deltoid, with assistance from the serratus anterior, biceps brachii and clavicular portions of the pectoralis major.

• Functional demands has resulted in the evolution of individual muscles from the basal unit formed by the serratus anterior.

• The upper and lower trapezius fibers also work in tandem with the serratus anterior to upwardly rotate the scapulae, such as during an overhead press.

• The two muscles most commonly inhibited during this first part of an overhead motion are the serratus anterior and the lower trapezius.

• It is musculotendinous in nature and is formed predominantly by the trapezius, rhomboids and serratus anterior muscles.

• The serratus anterior also plays an important role in the upward rotation of the scapula, such as when lifting a weight overhead.

• Antagonists to this function (upward rotators of the scapulae) are the serratus anterior and upper and lower fibers of the trapezius.

• It supplies branches to the first and second intercostal spaces as well as to the superior portion of serratus anterior.

• This may require concerted professional help to re-educate the muscles and re-engage muscle action in the serratus anterior during such movements.

• The serratus anterior formed the basal unit for these three muscles.

• The long thoracic nerve travels inferiorly on the surface of the serratus.

• Other muscles that perform this function include the serratus anterior and pectoralis minor.

• In the upper body the serratus anterior works eccentrically to prevent winging of the scapula.

• Stretching from the spine to the scapula, rhomboid major forms part of the latter group together with rhomboid minor, serratus anterior, levator scapulae, and trapezius.